So what I need (from salvadorc17) is an exact explanation of which file(s) attached to this thread make up the Training Lessons mod, and exactly which levels of these file(s) have been modified.

The files attached as individual levels need to be extracted and imported as levels into the properly level using the editor, but why you need to do that, if i giving you the latest version, which is the file, that contains all leves like a regulary smc room...